As for mixers I cant say which one is better for dough since I only used the KA K45 for dough. I cant compare it to anything since I haven't used anything else. I read that Jeff Versano uses the Electrolux DLX and said that it was better than the KA but to me that's one man's opinion and I'm sure someone else would say something different. I guess someone would have to buy all these different mixers and test them out and then that would be that persons opinion while someone else who used all those mixers would have a different opinion.

I only researched the KA mixers and after reading many postings about them concluded that the older they are the more durable they are.

First off, the dough, at a certain weight, tends to crawl up the hook into the springs that holds the hook in place. Second, the bowl "locks" tightly in place on occasion where it almost takes two people to get it out.

If you want to spend $200-300, look into the Cuisinart 5.5qt or 7qt, with 800 watts of power or get the Bosch Universal, the new one, or a DLX. They are all much better mixers than the KA, imho.